Audio Interface, Converter & Baluns
ROLLS Splitter/Combiner/Isolator, MS20C
$69.90
Input Impedance: XLR: 600 Ohms, 1/8" (3.5mm): 10K Ohms
Output Impedance: 600 Ohms
Frequency Response: 35 Hz - 20 kHz
Max Level: +26 dBm
Dimensions: 3" x 2.25" x 1.2"
Splits balanced XLR input, or 1/8" input to two balanced XLR
Combines two balanced XLR signals to one XLR output. NOTE: Will only pass phantom power to one microphone.
One signal is transformer isolated from the other.
Ground Lift switch for noise elimination
ROLLS 4 Channel Stereo Mini Mixer, MX42
$69.00
Input Impedance: 10K to 47K Ohms
Output Impedance: 2.5K to 10K Ohms
Gain: -12 dB MAX
4 Stereo RCA inputs
Passive, the unit requires no power.
Dimensions: 3" x 2" x 1.42" (W x H x D)
ROLLS Live Mix 2 Channel Mic Mixer, MX34C
$149.00
Input Impedance: Mic - 600 Ohms or greater (XLR), Aux - 47K stereo (3.5mm)
Output Impedance: 50 Ohms
THD + Noise: .02%
S/N Ratio: 110 dB
Frequency Response: 20 Hz - 30 kHz (+0 / -1 dB)
Max Output Level: + 14 dB
Max Input Level: +20 dB
Max Gain: +70 dB
Batteries: 2 X 9V Alkaline
Current Draw: 30 mA
Phantom Power: +18 VDC
Input Connectors: 2 Female XLR, 1/8" (3.5mm)
Output connectors: 3.5mm Stereo Main Out, 3.5mm Headphone
DC Power Jack: (5.5mm X 2.1mm Tip Negative)
9V Battery or AC adapter operation
2 Mic Inputs
+18VDC Phantom Power
3.5mm Stereo Output
3.5mm Stereo Headphone Output
Pan control on each channel
Auxiliary 3.5mm Input
3.5mm mic in jack for headset or other mic
Size: 6.3"w x 3.7"d x 1.4"h
ROLLS Mini Mix 2 Channel Mixer, MX22S
$69.90
CH1 Max Gain: 32 dB
Power: 15 VDC 500 mA
CH2 Max Gain: 20 dB
CH1 Input Impedance: 10 Ohms
CHI Input Impedance: 20K Ohms
Output Impedance: 50 Ohms
1/8" and RCA line level signals
Dual RCA Stereo output
Individual controls for each channel
Size: 2.75" x 2.35" x 1.5" (7 x 6 x 3.8cm)
ROLLS Mini-Mic Preamp, MP13
$99.00
Small size
Works with dynamic, Phantom and Heaset mics
XLR and 3.5mm inputs
XLR and 1/4" outs
Works with 9 to 15 Vdc
Input Impedance: 10K Ohms balanced/unbalanced
Max Input Level: +4dBV XLR balanced, +10dBV unbalanced
Max Gain: XLR 60dB, 1/4" 54dB
Phase Shift: <10 deg. 20 Hz - 20 kHz
EIN: -108dB max.
THD: <.01%
IMD (SMPTE): < .01%
CMRR: >80 dB
Phantom Power: +24 Volts, 6 mA
Power: 12-15VDC
Size: 3.4" X 4.2" X 1.4"
ROLLS Hum Eliminator, HE18
$64.90
Frequency response: 20Hz to 70 kHz +/- .5dB
Distortion: < 0.005% THD @ 1 khz
Crosstalk: > -97 dB
Max source impedance: 1 K Ohm
Min load impedance: 10 K Ohm
Eliminates ground loop hum and buzz.
Leaves signal grounds connected.
Passive, the unit requires no power.
Converts balanced lines to unbalanced lines and vice-versa.
Adjusts signal voltages to match difference in ground potential.
ROLLS 4 Channel Studiophile Headphone Amplifier, HA243
$149.00
4: 1/4" TRS Headphone Outputs with Level Control.
With the new JRC3414 I.C.'s it has plenty of gain!!!
1/4" , 3.5mm and RCA A and B Inputs.
Switchable mono or stereo for both A and B inputs
Input Impedance: 10 K Ohms
Maximum Input Level: +26 dBV
Max Gain: 20 dB per channel
Output Power: 326 mW per side, 652 mW per channel (@ 62 Ohms)
S/N Ratio: 92 dB
THD: <.008%
Power: 15 VDC (Adapter included)
Size: 6.75 x 1.75 x 4.75"
ROLLS 4 Channel Headphone Amplifier - Battery Operated, HA204P
$129.00
Stereo 1/8" and Dual RCA Inputs
Rotary Volume controls
AC adapter included
15-35k Hz frequency response
Lots of output level.... it's loud!
9V battery Operated
ROLLS Passive Stereo Direct Interface, DB24
$99.00
Completely passive uses no external power
Stereo RCA, 1/8" (3.5mm), and dual 1/4 Inputs
Balanced XLR Outputs
Ground Lift for each channel
Individual variable attenuators
ROLLS Podcast Pro Mic/Source Passive Mixer, DB227
$99.00
Mixes one XLR microphone and a source signal to a single XLR microphone level output
Passive unit does not require a power source so it can be used anywhere
Switchable mixing for quick operation
Single source level control for proper attenuation of the source inputs
ROLLS A/V Presenter Stereo Patch, DB14B
$64.90
Splits Stereo RCA and stereo 1/8" (3.5mm) signals
Individual Right and Left level controls
Transformer balanced XLR mono output.
Hum elimination/ground lift switch
Max Input Level: +20 dB
Max Output Level: +20dB RCA, 0 dB XLR
Frequency Response: (Low Z) 50 Hz to 16 kHz
ROLLS 4 Channel Mini-Mix 2, MX51S
$69.00
Power: ROLLS PS27s adapter
CH 1 Gain: 32 dB XLR jack (highest gain)
Phantom Power: for CH 1 microphone XLR
Ch2 Gain: 26 dB 1/8" and RCA
Ch 3 and 4 Gain: 26 dB each RCA
Output: 1/8" stereo and stereo RCA
S/N Ratio: >90 dB
THD: <.008%
IMD(SMPTE): <.008%
Input Impedance: 10K Ohms unbalanced each jack
For mixing a microphone XLR input with up to three RCA input signals
XLR phantom power available.
Four channels total
Line / Headphone output level
ROLLS PS27 AC adapter included
Stereo RCA Line-Level Output
Size: 3" x 5" x 1.25" (8 x 13 x 3.2 cm)
ROLLS Phantom Power Adapter for Microphones, PB23
$64.90
Phantom voltage: 48V
Connectors: 1: Male XLR, 1: Female XLR, 1: 5mm DC input jack
Power Input 12 - 18 VCD (Rolls PS27)
Size: 3" x 2.5" x 1.25"
Weight: 1lb (.68 Kg)
Current drain 40ma nominal one mic 15vdc
Powers a single microphone
Utilizes a switching regulator for stable voltage performance
ROLLS 2 Channel Phantom Power Adapter for Microphones, PB223
$79.00
Phantom voltage: 48V
Connectors: 2: Male XLR, 2: Female XLR, 1: 5mm DC input jack
Power Input 12 - 18 VCD (Rolls PS27)
Current drain 40ma nominal one mic 15vdc
Utilizes a switching regulator for stable voltage performance
Power condenser microphones requiring phantom power
Operates on the included Rolls PS27 12VDC adapter
High frequency switching power supply to eliminate noise
Size: 5.45" x 2.875" x 2.25"
ROLLS 8 Channel Mic/Line Mixer, RM82
$299.00
Input Impedance: Mic: 10K Ohms XLR balanced 1/4": 20K Ohms unbalanced Bus Input: 10K Ohms unbalanced
Max Input Level: Mic: 0 dBV balanced Line: +6 dBV
Input Connectors: 8: XLR, 8: 1/4" (Line), 1: RCA (Bus input)
Outputs: XLR bal., RCA unbalanced Prefade out
Max Gain: Mic: 55 dB Line: 26 dB
Tone Control: 12 dB Treble/Bass cut
Phantom Power: +48 VDC
Output Level: +22 dBV max
Output Impedance: 51 Ohms
Phase Shift: <10 degrees, 20Hz to 20 kHz
Max S/N ratio: 106 dB
THD: <.009%
CMRR: >80 dB (Mic)
Eight XLR microphone inputs.
Trim controls.
Tone controls (treble/bass cut).
Individually switchable +48 VDC phantom power.
Eight 1/4" unbalanced inputs, each may be internally jumpered to become an Insert or a Direct Output.
RCA Prefader (pre Master Vol.) Output for recording, monitoring or cascading.
RCA Aux Buss Input for cascading, or as a ninth unbalanced input.
Mic or Line output level.
Size: 19" x 1.75" x 6" (48.3 x 4.5 x 15 cm)
ROLLS XLR Distribution Amp 8 Channel Mono/4 Channel Stereo, RA163
$189.00
Input Impedance: 100 K Ohms balanced
Max Input Level: +24 dBV
I/O Connectors: XLR
Output Impedance: 50 Ohms balanced
Max Output Level: +24 dB
Max Gain: 20 dB
S/N Ratio: >90 dB
Frequency Response: 10 Hz - 40 kHz, +/- 1 dB
THD: <.008%
Power: 120 VAC 50-60 Hz, 15VA
Mono or Stereo Operation - mono input to eight outputs, or stereo inputs to four stereo outputs.
+20 dB Gain switch.
All XLR jack inputs and outputs.
Size: 19" x 1.75" x 6.5" (48 x 4.5 x 17 cm)
SHURE Digital Audio Interface (converts to USB), MVI-DIG
$99.00
5 DSP preset modes (speech, singing, flat, acoustic instrument, loud) for EQ, compression, and limiter settings
Touch panel provides control for gain, mute, and headphone volume
Manual audio settings can be adjusted via iOS devices with Lightning Connector, using the ShurePlus MOTIV app
JFET Class A buffered instrument preamplifier input for exceptional tone and clarity
Combined XLR microphone and 6.3 mm instrument input
Supplies phantom power for use with condenser microphones
ROLLS Pro Mix Plus 3 Channel Mic MIxer, MX54S
$149.00
Input Impedance: 600 Ohms
Output Impedance: XLR 600 Ohms
THD + Noise: .02%
S/N Ratio: 84 dB
Frequency Response: 25 Hz - 16 kHz (+0 / -3 dB)
Max Output Level: + 14 dB
Max Input Level: -14 dB
Max Gain: +60 dB
Low Cut: -3 dB @ 100 Hz
Current Draw: 20 mA
Phantom Power: +18 VDC
Connectors: 3: Female XLR, 2: Male XLR, 1: 1/4" TRS, DC Power Jack
Current drain 15ma nominal one mic 15vdc
Mixes three microphones to stereo XLR outputs
Output level controls for mic or line-level output
Transformer isolated outputs
Phantom Power and Low-Cut switches for each Mic input
Battery and AC powered
Handy shoulder strap mounts
Switchable Low Cut filter (100 Hz high pass) for each channel
Size: 5.3" x 3.7" x 2"
ROLLS 3 Channel Mic Mixer/Combiner, MX310
$119.00
Input Impedance: 600 Ohms
Output Impedance: 600 Ohms Mic - 200 Ohms line
THD Noise: .05% Typical
Frequency Response: 20 Hz - 20 kHz ( 0 / -3 dB)
Voltage Gain: 50 dB line/10 dB Mic
Low Cut: -3 dB @ 100 Hz
Current Draw: 20 mA
Phantom Power: 15 VDC
Maximum Supply Voltage: 16 VDC
Size: 5.25" x 3.75" x 1.5"
ROLLS Phono Preamp, VP29
$69.90
Input Sensitivity: 42 dB gain 1kHz, 47k Ohms
Input Capacitance: 120pf
Sensitivity: 5mV for 635mV output
Input Impedance: 47k Ohms
Frequency Response: / - .5 dB 20 Hz - 20 kHz (Conforms to RIAA Equalization Curve)
PWR: 9 - 15 VDC
THD .01% @ 1 kHz
S/N Ratio: >83 dB unweighted
Output Impedance: 1K Ohms
RIAA Equalization
RCA inputs/outputs - 1/8 inch (3.5mm) TRS output.
AC adapter included
Size: 3.25" x 2" x 1.5"
ROLLS Professional 6 Channel Bluetooth Audio Mixer, RM169
$229.00
Input Impedance: Mic: 600 Ohms XLR balanced Source: 22K Ohms RCA Mic Insert: 22K Ohms 1/4" TRS insert
Weight: 5 lbs. (2.3 kg)
Size: 19" x 1.75" x 4" (48.3 x 4.5 x 10 cm)
Max Gain: Mic: 60 dB Source: 26 dB Tone Controls: /-12 dB 100 Hz Bass, /-12 dB 11kHz Treble Noise Floor: - 80 dB, THD: <.025%
Output Impedance: 51 Ohms
Output Level: 17 dBV max
Phantom Power: 15 VDC
In/Out Connectors: 5: XLR, 5: Stereo RCA, 1: 1/4" TRS, 2: 3.5mm
Headphone Output Impedance: > 8 Ohms
Max Input Level: Mic: -14 dBV Mic level Source: 24 dBV
Current drain 100ma 15vdc
Two XLR Microphone Inputs (including a paralleled front panel input).
Individually switchable phantom power.
Four Stereo Source Inputs, Four RCA and one front panel stereo 3.5mm.
1/4" TRS Mic Insert jack.
Stereo RCA and XLR Outputs.
Headphone output on front panel with volume control.
level control for Bluetooth input signal.
ROLLS 4 Channel Audio Distribution Amp, DA134
$119.00
Expands the output of a stereo device to multiple outputs
Can raise the output level to true line level for any output
Stereo 4 channel distribution amplifier
Front panel volume controls
Mono or Stereo operation
DC low end frequency for audiophile frequency response
Small compact design
Accepts inputs directly from I-pad / I-pod or laptop
Included Rolls PS27s power supply.
Stereo pass thru: For connection to another DA134
ROLLS Smartphone Breakout Box, CPB7
$99.00
The CPB7 is completely passive, requires no power.
Smart Phone cable included.
Powder coated steel chassis.
ROLLS Bluetooth Audio Adapter, BD87
$129.00
Professional bluetooth audio adapter
Stereo RCA and 1/8” Outputs
Mono XLR mic level output
Powder coated steel chassis
Max Trans. distance 20M/60FT (line of sight to front)
Format support WAV/WMA/FLAC/APE/MP3 lossless stereo output
Bluetooth Version 4.2
M-AUDIO Bass Traveler Portable 2 Channel Headphone Amplifier, BASSTRAVELER
$39.00
Battery-powered amplifier can drive two sets of headphones
Long-lasting (approx. 8 hours) rechargeable Lithium polymer battery
LED indicator for power on, battery charge, low battery
(2) 1/8-inch (3.5mm) stereo headphone jacks
Rotary on/off/volume control
Selectable 2-position boost switch optimizes sound for any headphone
Compatible with headphones from 16–100 ohms
Micro USB port for battery charging
(1) 1/8-inch (3.5mm) stereo input jack
Compatible with most popular in-line remote control headphones
RDL Hum Killer Audio Isolation Transformer, AV-HK1X
$99.00
XLR input and output
Ground Isolation in Balanced Line
Line-Level Ground-Loop Elimination
Balanced Mono Galvanic Isolation
Isolation in Rugged Field Case
Portable or Permanent Isolation Module
Input:+4 dBu nominal
Output:+4 dBu nominal
RDL Hum Killer Stereo Audio Isolation Transformer, AV-HK1
$125.53
Dual RCA inputs and outputs
Ground Isolation in Unbalanced Line
Ground-Loop Elimination
Unbalanced Stereo Galvanic Isolation
Isolation in Rugged Field Case
Portable or Permanent Isolation Module
Inputs (2):-10 dBV nominal, 10 kO
Outputs (2):-10 dBV nominal, 10 kO
PHILMORE CAT5 to two RCA Male phone plugs, 70-037
$11.56
Requires one at each end
6.5" overall length
VANCO Toslink/Digital Coax to Toslink/Digital Coax Audio Converter with Dual Outputs:, 280565
$29.90
Converts Coaxial digital audio signals to Toslink digital audio signals; Converts Toslink digital audio signals to Coaxial digital audio signals
Switch between either Coaxial or Toslink source to output both Coaxial and Toslink formats
Accepts stereo or surround (up to 5.1ch) audio signals via Coaxial or Optical
Built in signal enhancement that repeats digital audio signals to extend up to double the transmission distance
Supports sampling rate at 32, 44.1, 48, 96, and 192KHz
Power Supply: 5V DC
Dimensions: 2.24” W x .96” H x 2.18” D
VANCO Digital Audio over Single Cat5e/Cat6 Cable Extender, 280531
$129.00
Application: Allows digital signals to be transmitted using a single Cat5e or Cat6 cable
Transmission Range: Up to 330 ft (100 meters)
Accepts Digital Coax or Optical Toslink
Supports Digital 5.1 (DTS- Dolby Digital- etc.)
High performance- zero signal loss
Data Transmission Rate: 12.8 Mb/s
S/PDIF (Digital Coax): 96 kHz performance
Power Supply: 12V DC- transmitter side
Dimensions: 2.75” W x 1.25” H x 2.5” D
VANCO Premium Digital to Analog Audio Converter Dolby Approved, 280515
$59.90
Dolby Digital Approved
Converts coaxial or Toslink digital audio signals to analog L/R audio
Select toggle switch is used to choose Coaxial or Toslink as the input
Supports DTS/Dolby Digital audio source
Built-in Dolby/DB HD, the DTS HD, LPCM/LPCM with decoding
24-bit S/PDIF incoming bit stream on left and right channels
Supports a full range of 32k, 44k, 1k, 48k, 64k, 88.2k, 96k, 192k
Provides electromagnetic-noise-free transmission
Easy to install and simple to operate
Power Supply: 5V DC
UL Listed
VANCO Digital To Analog Audio Converter, 280512
$49.90
Converts Coaxial or Toslink digital audio signals to analog L/R Audio
Supports sampling rate at 32, 44.1, 48, and 96 KHz
24-bit S/PDIF incoming bit stream on left and right channels
Provides electromagnetic noise free transmission
Power Supply: 5V DC
UL Listed
Dimensions: 1.625" W x 1" H x 2.5" D